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arXiv · 1803.10273

Non-cuspidal Hida theory for Siegel modular forms and trivial zeros of $p$-adic $L$-functions

Zheng Liu·Giovanni Rosso
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Abstract

We study the derivative of the standard $p$-adic $L$-function associated with a $P$-ordinary Siegel modular form (for $P$ a parabolic subgroup of $\mathrm{GL}(n)$) when it presents a semi-stable trivial zero. This implies part of Greenberg's conjecture on the order and leading coefficient of $p$-adic $L$-functions at such trivial zero. We use the method of Greenberg-Stevens. For the construction of the improved $p$-adic $L$-function we develop Hida theory for non-cuspidal Siegel modular forms.

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Zheng Liu, Giovanni Rosso. 2018-03-27. Non-cuspidal Hida theory for Siegel modular forms and trivial zeros of $p$-adic $L$-functions. https://doi.org/10.1007/s00208-020-01966-x

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